Veterinary instrument



June 18, 1935. E. ELLSWORTH VETERINARY INSTRUMENT Filed Nov. 25. 1934 2SheetsSneet l nwnfor Z wZWsnw Attorney June 18, 1935. E. ELLSWORTHVETERINARY INSTRUMENT Filed Nov. 23, 1934 2 Sheets-Sheet 2 Inventor ZWZZZJWOF7% Attorney Patented June 18, 1935" V UNITED" STATES" PATENTOFFICE The present invention relates to new and useful improvements inveterinary instruments and has for its primary object to provide, in amanner as hereinafter set forth, a device-comprising a novelconstruction, combination andarrangement of parts through the medium ofwhich enemas, for example, may be expeditiously given to cattle, horsesand other stock.

Another important object of the invention is to provide an instrument ofthe aforementioned character comprising novel. means for clamping therectum in a manner to prevent leakage bu without causing discomfort tothe animal.

Other objects of the invention are to provide an instrument of thecharacter described which willbe comparatively simple in construction,strong,

durable, highly efficient and reliable in use, com

pact, light in weight and which may be manufactured at low cost. I

All of the foregoingand still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein:--

Figure 1 is a plan View of a veterinary instru-- ment constructed inaccordance with the present invention;

Figure 2 is a view in longitudinal section through the instrument.

' end 'a ring 2. The forward"portion of the ring 2 has formed therein aninternal groove 3 in which is mounted a tubular annulus of suitableresilient I I or compressible material, preferably rubber, whichconstitutes a valve seat4.- I I The b ight portion of the frame I hasforme thereon a rearwardly extending boss5;and said bight portion isprovided with a longitudinal groove or channel 6 for the reception of atubular stem 1, the rear portion of which is externally threaded, as at8. Mounted in the rear end of the stem I is a nipple 9 for connectionwith a flexible conduit from a source of fluid supply.

Return flow of the fluid through the nipple 9 is v prevented by a ballcheck valve I (see Figure 2) which is mounted in said nipple.

Formed integrally with the forward end of the stem I is a substantiallyconical head I I through which the passage I2 in said stem 1 alsoextends. Engaged with the rear end of the head I I is a 1 ring I3 ofsuitable compressible material, preferably rubber, which is secured inposition by a retaining nut I4 which is threaded on the enlarged forwardendportion I of the stem I.

A nut I6 is threadedly mounted on the portion 8 of the stem I andengageable with the boss 5 for drawing the head I toward the resilientseat 4 for clamping the rectum therebetween.

In use, the instrument is inserted and the nut I6, which is providedwith operating handles I1,

is actuated to clamp the outer end or mouth of the rectum between theelements I3 and 4, thus sealing this point againstleakage of the fluidWith without causing discomfort to the animal. a rubber hoseor othersuitable conduit connected to the nipple 9 the fluid from the source ofsupply may then be introduced into the animal through the passage I2, aswill beapparent. The check valve I0 prevents return flow of the fluidthroughthe stem I. I In Figure 1 of the drawings, a portion of a conduitis indicated by the reference numeral 18.

It is believed that the many advantages of a veterinary instrumentconstructed in accord ance with the present invention will be readilyunderstood, and although a preferred embodiment of the invention is asillustrated and described, it is to be understood that changes in thedetails of construction and in the combination and arrangement of partsmay be resorted to which will fall within the scope of the inve n,

tion as claimed.

What is claimed is:-

A veterinary instrument comprising a substantially U -shaped framehaving a ring integral with the open end thereof, the bight portion ofthe frame having a longitudinally extending groove therein, said ringhaving a channel in its-inner periphery, a compressible annulus mountedin said channel and having a portion thereof projecting beyond the innerside of said ring and defining a seat, a stem extending throughsaidgroove and extending through said ring, a frusto- I conical shapedheadon said stem, a compressible,

tween, said stem and said head being provided with a fluid passagetherein and a clamping nut threadedly mounted on said stem andengageable with thebight portion of the frame for} moving the stemwithin the frame.

- EDGAR ELLSWORTH-

